Choroid veins

Choroid veins are a network of veins located in the choroid layer of the eye. The choroid is a vascular layer of the eye, containing connective tissues, and lying between the retina and the sclera. The primary function of the choroid veins is to drain deoxygenated blood from the choroid and transport it back to the heart.

Anatomy

The choroid veins are part of the uveal tract, which also includes the iris and the ciliary body. The choroid itself is rich in blood vessels and provides oxygen and nutrients to the outer layers of the retina. The choroid veins are divided into several smaller veins, which eventually converge to form larger veins.

Function

The main function of the choroid veins is to facilitate the removal of deoxygenated blood from the choroid. This is crucial for maintaining the health of the retina and ensuring proper visual function. The choroid veins work in conjunction with the choroidal arteries, which supply oxygenated blood to the choroid.

Clinical Significance

Disorders of the choroid veins can lead to various eye conditions. For example, choroidal neovascularization can occur when new, abnormal blood vessels grow from the choroid through the Bruch's membrane into the retina, potentially leading to vision loss. Other conditions such as choroiditis and uveitis can also affect the choroid veins, leading to inflammation and other complications.

Related Structures

• Retina
• Sclera
• Iris
• Ciliary body
• Choroidal arteries
• Bruch's membrane

See Also

• Choroid
• Uvea
• Ophthalmology
• Vascular system of the eye